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Finding the Third Proportional to 315,492.75 and 684,217.13

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Solution

The third proportional to 315,492.75 and 684,217.13 is: 1,483,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,492.75 : 684,217.13 = 684,217.13 : x
  2. Step 2: Convert to fraction form
    315,492.75/684,217.13 = 684,217.13/x
  3. Step 3: Cross multiply
    315,492.75x = 684,217.13 × 684,217.13
  4. Step 4: Simplify right side
    315,492.75x = 468,153,074,143.27
  5. Step 5: Solve for x
    x = 468,153,074,143.27/315,492.75
  6. Step 6: Final answer
    x = 1,483,879.02

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.